package Shuzu;

public class BeiZhengDemo {

	public static void main(String[] args) {
		int[] a = new int[20];
		for (int i = 0; i < 20; i++) {
			a[i] = i + 1;
		}
		for (int i = 0; i < 20; i++) {
			if (a[i] % 3 == 0) {
				System.out.println(a[i]);
			}
		}

	}

}
